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<?php $valuesId = 'Zielona Góra'; var_dump(preg_match("@^[0-9A-ZĄąĆćĘꣳÓ󯿏źŃńŚś\-\.\, ]{5,35}$@i", $valuesId)); var_dump(preg_match("@^[0-9A-ZĄąĆćĘꣳÓ󯿏źŃńŚś\-\.\, ]{5,35}$@iu", $valuesId));
Output for 4.3.3 - 7.1.0
int(1) int(1)
Output for 4.3.0 - 4.3.2
int(1) int(0)